2. Active Transport energy requiring process that can “carry” a substance into a cell

3. Adaptation change that increases an organism’s chances of survival change that increases an organism’s chances of survival

4. Adrenal endocrine gland endocrine gland that produces the hormone adrenaline that produces the hormone adrenaline

5. Alga non-vascular plant-like autotroph that uses sunlight to produce food

6. Allele Allele Each form of a gene

7. Alveolus grape-like cluster of tiny air sacs in the lungs

8. Amoeba a type of protist that moves by means of pseudopods (false feet)

9. Amino Acid building block of protein A Protein:

10. Anatomy the study of the structure of organisms

11. Angiosperm type of seed plant whose seeds are covered by a protective wall (flowering plants)

12. Antibiotic chemical that destroys or weakens disease causing bacteria

13. Antibody protein made by certain white blood cells in response to an antigen

14. Antigen invading organism or substance

15. Aorta largest blood vessel in the body

16. Artery blood vessel carrying blood away from the heart

17. Good Luck!